Linking the KM3-230213A Neutrino Event to Dark Matter Decay and Gravitational Wave signals

Abstract

The KM3NeT collaboration recently reported the detection of an ultra-high-energy (UHE) neutrino event, dubbed KM3-230213A. This is the first observed neutrino event with energy of the order of $\mathcal{O}(100)\mathrm{PeV}$, the origin of which remains unclear. In this paper, we interpret this high energy neutrino event in terms of the Dirac fermion dark matter (DM) $\chi$ decays via the right-handed (RH) neutrino portal assuming the Type-I seesaw mechanism for neutrino masses and mixings. Furthermore, the Dirac fermion dark matter $\chi$ is assumed to be charged under $U(1{)}_X$ dark gauge symmetry, which is spontaneously broken by the vacuum expectation value (VEV) of the dark Higgs $\Phi$. In this scenario, DM can decay into a pair of Standard Model (SM) particles, such as neutrinos, leptons, and gauge bosons via the RH neutrino portals for $v_{\Phi }\gg m_{\chi }$. Then we can reply on the HDMSpectra package to generate the neutrino and $\gamma$-ray spectra from heavy DM decays. If the DM mass is around $440\mathrm{PeV}$ with a lifetime $5\times 10^{29}$ sec, it can account for the KM3-230213A event. However, such heavy DM cannot be produced through the thermal freeze-out mechanism due to overproduction and violation of unitarity bounds. We focus on the UV freeze-in production of DM through a dimension-5 operator, which helps in producing the DM dominantly in the early Universe. Finally, the large value of the dark Higgs field VEV opens up the intriguing possibility of generating gravitational waves (GWs) spectra from cosmic strings. We have found a reasonable set of parameter values that can address the KM3NeT signal, yield the correct value of the DM relic density through freeze-in mechanism, and allow for the possible detection of GW signal at the future detectors.

arXiv commentJCAP-accepted version

References in corpus (39)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The Structure of Cold Dark Matter Halos
• Characterization of the LIGO detectors during their sixth science run
• Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
• A gravitational-wave standard siren measurement of the Hubble constant
• Freeze-In Production of FIMP Dark Matter
• Sensitivity Studies for Third-Generation Gravitational Wave Observatories
• Neutralino Relic Density including Coannihilations
• Detector configuration of DECIGO/BBO and identification of cosmological neutron-star binaries
• The IceCube high-energy starting event sample: Description and flux characterization with 7.5 years of data
• The number of cosmic string loops
• Quantitative String Evolution
• Extending the Velocity-dependent One-scale String Evolution Model
• Placing limits on the stochastic gravitational-wave background using European Pulsar Timing Array data
• Large parallel cosmic string simulations: New results on loop production
• Differential limit on the extremely-high-energy cosmic neutrino flux in the presence of astrophysical background from nine years of IceCube data
• Stochastic gravitational wave background from smoothed cosmic string loops
• Fractal Properties and Small-scale Structure of Cosmic String Networks
• Scaling of cosmic string loops
• Detection of a particle shower at the Glashow resonance with IceCube
• Probing the pre-BBN universe with gravitational waves from cosmic strings
• Dark Matter Spectra from the Electroweak to the Planck Scale
• Cosmic Archaeology with Gravitational Waves from Cosmic Strings
• CMB constraints on cosmic strings and superstrings
• Measurement of ultra-high-energy diffuse gamma-ray emission of the Galactic plane from 10 TeV to 1 PeV with LHAASO-KM2A
• micrOMEGAs 6.0: N-component dark matter
• $\nu \Lambda$MDM: A Model for Sterile Neutrino and Dark Matter Reconciles Cosmological and Neutrino Oscillation Data after BICEP2
• Cosmic-Ray Neutrinos from the Decay of Long-Lived Particle and the Recent IceCube Result
• IceCube Events from Heavy DM decays through the Right-handed Neutrino Portal
• Pairwise sums in colourings of the reals
• Constraints on the flux of $\sim (10^{16}-10^{17.5})$ eV cosmic photons from the EAS-MSU muon data
• Super heavy dark matter origin of the PeV neutrino event: KM3-230213A
• Ultra-High-Energy Neutrinos from Primordial Black Holes
• Common origin of baryon asymmetry, dark matter and neutrino mass
• Cosmological Origin of the KM3-230213A event and associated Gravitational Waves
• Superheavy dark matter from the natural inflation in light of the highest-energy astroparticle events
• Kinetic Mixing, Proton Decay and Gravitational Waves in SO(10)
• Association of 220 PeV Neutrino KM3-230213A with Gamma-Ray Bursts
• Insights from leptohadronic modelling of the brightest blazar flare